Semi Rotary Pump 1" (K2) 22lpm - SRG2A With diesel, light oils & water. Semi rotary double acting. Cast iron body with brass internals. Flanged inline threaded ports. Choose from: 1/2" K0 version 3/4" K1 version 1" K2 version 1.1/2" K5 version Note: never mount horizontally.